Displaying 4 results from an estimated 4 matches for "2x5".
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25
2006 Oct 24
3
Help with understanding [[]] [] array, list, matrix referencing
...help understanding how R references
arrays, matrices, lists, and objects using [[]] and []. I have read the
R guides and several tutorials but I am not the fastest kid on the block
so I am still having difficulty understanding this. For examples the
following code produces a 5 element list of 2X5 random numbers that I
then convert to a 2X5X5 matrix.
cov<-matrix(c(.4,-.1,-.1,.3),nrow=2,ncol=2)
rnds<-NULL;
for (i in 1:5){
t1<-rnorm(5,cov)
t2<-rnorm(5,cov)
t3<-rbind(t1,t2)
rnds[i]<-list(t3)
}
rnds.matrix<-array(unlist(rnds),dim=c(2,5,5));
To access the matrix rnds.m...
2006 Dec 05
4
incidence and adjacency matrix conversion
Dear all,
how can I convert an m x n incidence matrix into an m x m adjacency
matrix or an n x n adjacency matrix? The current matrix contains binary
data, hence the new matrix would contain counts of common occurrences.
Thank you for your help.
Phil
2003 Sep 11
1
Customised legend in lattice
Hi List,
Am trying to customize a legend in trellis: Draws 2x5 lines in 5 colors and
2 linetypes. I would like to add two more items to the legend showing the
key for the line types above the colored legend.
Any suggestions welcome - thanks Herry
#############################
#Following example code:
library(gregmisc)
trellis.device(bg="white")
i1...
2013 Jun 04
3
Serial terminal issues
I can't seem to get my serial terminal to work with my new system.
I had a serial terminal connected to my old system that worked great and copied /boot.config, /boot/loader.conf and /etc/ttys settings over from it.
The new system has a Gigabyte GA970A-UD3 board with just a serial header on the board. I bought a serial connector backplate in an electronics store and connected it to the